.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px 40px;
}

/* Upload area */
#upload-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 60px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

#upload-area.drag-over {
  border-color: var(--brand);
  background: #f0f7ff;
}

.upload-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.upload-icon {
  color: #94a3b8;
  display: block;
  margin-bottom: 4px;
}

#upload-area p {
  margin: 0;
  font-size: 15px;
}

.btn-upload {
  display: inline-block;
  margin-top: 4px;
  padding: 9px 20px;
  background: var(--brand);
  color: #fff;
  border: none;
  border-radius: 8px;
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-upload:hover {
  background: var(--brand-dark, #005bb5);
}

/* Toolbar */
.toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.toolbar button {
  padding: 7px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: #fff;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.toolbar button:hover:not(:disabled) {
  background: #f5f5f5;
}

.toolbar button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.toolbar button.btn-active {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}

.toolbar button.btn-active:hover {
  background: var(--brand-dark, #005bb5);
}

.unit-label {
  margin-left: auto;
  font-size: 12px;
  color: #64748b;
  display: flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}

.unit-label select {
  padding: 4px 6px;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  font: inherit;
  font-size: 13px;
  background: #fff;
  cursor: pointer;
  outline: none;
}

.unit-label select:focus {
  border-color: var(--brand);
}

/* Status bar */
.status-bar {
  padding: 8px 12px;
  margin-bottom: 10px;
  min-height: 36px;
  background: #f8fafc;
  border: 1px solid var(--border-soft, #e4e4e4);
  border-radius: 8px;
  font-size: 13px;
  color: #334155;
  display: flex;
  align-items: center;
}

/* Canvas container */
.canvas-wrap {
  position: relative;
  width: fit-content;
  max-width: 100%;
  margin: 0 auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  line-height: 0;
  cursor: crosshair;
}

#img-preview {
  display: block;
  max-width: 100%;
  height: auto;
  user-select: none;
  -webkit-user-drag: none;
}

#canvas {
  position: absolute;
  top: 0;
  left: 0;
  cursor: crosshair;
}

/* Calibration input */
.calib-input {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.calib-input label {
  font-size: 13px;
  font-weight: 600;
}

.len-group {
  display: flex;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.15s;
}

.len-group:focus-within {
  border-color: var(--brand);
}

.len-group input[type="number"] {
  border: none;
  padding: 7px 10px;
  font: inherit;
  font-size: 14px;
  width: 90px;
  outline: none;
  background: #fff;
}

.len-group select {
  border: none;
  border-left: 1px solid var(--border);
  padding: 7px 10px 7px 8px;
  font: inherit;
  font-size: 14px;
  background: #f8fafc;
  cursor: pointer;
  outline: none;
  color: #334155;
}

/* Scale confirmed badge */
.scale-info {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  margin-top: 10px;
  background: #f0fdf4;
  border: 1px solid #86efac;
  border-radius: 8px;
  font-size: 13px;
  color: #15803d;
}

.scale-info-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  flex-shrink: 0;
}

.btn-primary {
  padding: 7px 16px;
  background: var(--brand);
  color: #fff;
  border: none;
  border-radius: 8px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary:hover {
  background: var(--brand-dark, #005bb5);
}

/* Measurements panel */
#measurements-panel {
  margin-top: 16px;
}

#measurements-panel h3 {
  font-size: 13px;
  font-weight: 600;
  color: #475569;
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

#measurements-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.meas-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: #f8fafc;
  border: 1px solid var(--border-soft, #e4e4e4);
  border-radius: 8px;
}

.meas-swatch {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  flex-shrink: 0;
}

.meas-dist {
  font-size: 15px;
  font-weight: 600;
  color: #0f172a;
  flex: 1;
}

.meas-coords {
  font-size: 11px;
  color: #94a3b8;
}

.btn-delete {
  padding: 3px 8px;
  border: 1px solid #fca5a5;
  border-radius: 6px;
  background: #fff;
  color: #ef4444;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.1s;
}

.btn-delete:hover {
  background: #fef2f2;
}

.muted {
  color: #64748b;
  font-size: 13px;
}